and some more.I've put the dependencies my modules have to each other in the POM of each module.

I also made parent POM project, which just describes the modules the project is comprised of.

I've got multiple Eclipse/Maven based problems with this setup.

a)
When I want to start the web application using the parent POM to look
at the newest version, I have to make sure to "manually install"
(context menu->Run As...->mvn install) the newest versions of my
modules to the local Maven repository.

Is there a way to
automatize this process, so when I run the web application on Jetty, the
modules are automatically built and published to the local Maven repo?

Or can I add something to the module/parent POMs that automatizes this?

b)
What is the best practice regarding the development of multi module
projects and testing them locally (not in a CI environment, where I can
automatize the process, of course)?

c) When I wanted to debug a single project web application before, I had to add some vm arguments to the Run configuration:-Xdebug -agentlib:jdwp=transport=dt_socket,address=9999,server=y,suspend=n

Then I would start the application and to debug, I would start a Remote Java Application on the project.

Now,
with multiple modules, it seems that I can only debug one of my modules
at the time, which is very irritating because of course one request is
led across the majority of my modules.

Is there another way/a best practice to debug multi module web applications or even single project web applications in Eclipse?